"Resources must be listed in the web_accessible_resources manifest key..." in syslog

[davidgtl]

• Extension version: v7.1.8
• Browser name & version: Vivaldi 3.3.2022.47, Chromium-based version 85.0.4183.123
• Operating system & version: Ubuntu 20.04.1

I have plenty of
[65302:65302:1031/180436.162904:ERROR:CONSOLE(0)] "Unchecked runtime.lastError: The message port closed before a response was received.", source: chrome-extension://mpognobbkildjkofajifpdfhcoklimli/browser.html (0)
followed by plenty of
[65302:65302:1031/180527.249201:ERROR:CONSOLE(0)] "Denying load of chrome-extension://klbibkeccnjlkjkiokjodocebajanakg/img/ic_suspendy_16x16.png. Resources must be listed in the web_accessible_resources manifest key in order to be loaded by pages outside the extension.", source: chrome-extension://mpognobbkildjkofajifpdfhcoklimli/browser.html (0)
in my syslog

Not sure what they mean, but I recognized the tab suspender icon. Except for these error messages I have no other issues

[XxX-Force]

For those who are not aware, there is great concern that this extension may now be malicious in nature.
You will find a great deal of discussion about this here:

#1175

and a summary of the situation to date here:

#1263